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Dhurey A, Mandal S, Pramanik A. I 2/DMSO-Promoted Synthesis of Diaryl Sulfide- and Selenide-Embedded Arylhydrazones. J Org Chem 2023; 88:5377-5390. [PMID: 37053514 DOI: 10.1021/acs.joc.2c02974] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
Functionalization and derivatization of arylhydrazones are important in pharmaceutical, medicinal, material, and coordination chemistry. In this regard, a facile I2/DMSO-promoted cross-dehydrogenative coupling (CDC) for direct sulfenylation and selenylation of arylhydrazones has been accomplished utilizing arylthiols/arylselenols at 80 °C. This method provides a metal-free benign route for the synthesis of a variety of arylhydrazones embedded with diverse diaryl sulfide and selenide moieties in good to excellent yield. In this reaction, molecular I2 acts as a catalyst, and DMSO is utilized as a mild oxidant as well as solvent to produce several sulfenyl and selenyl arylhydrazones through a CDC-mediated catalytic cycle.
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Affiliation(s)
- Arun Dhurey
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, India
| | - Subhro Mandal
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, India
| | - Animesh Pramanik
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700 009, India
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2
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Müller F, Mix A, Stammler HG, Mitzel NW. Aggregation of Copper(I) and Silver(I) Chloride Phosphane Complexes Determined by Aryl‐Stacking and Weak Hydrogen Bonds in the Ligand Periphery. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202101083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Felix Müller
- Bielefeld University: Universitat Bielefeld CHE GERMANY
| | - Andreas Mix
- Bielefeld University: Universitat Bielefeld CHE GERMANY
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3
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Structural diversity of copper(II) complexes with three dimensional network: Crystal structure, Hirshfeld surface analysis, DFT calculations and catalytic activity. Polyhedron 2022. [DOI: 10.1016/j.poly.2021.115633] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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4
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Patel AK, Jadeja RN, Patel N, Patel RN, Patel SK, Butcher R, Kumar S, Kumar G. Copper(II) hydrazone complexes derived from (Z)-N′-{(2-hydroxynapthalen-1-yl}methylene)acetohydrazide: Synthesis, spectral characterization, electrochemical behaviour, density functional study, in vitro catalytic activity and molecular docking. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2021.100244] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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5
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Mermer A, Alyar S. Synthesis, characterization, DFT calculation, antioxidant activity, ADMET and molecular docking of thiosemicarbazide derivatives and their Cu (II) complexes. Chem Biol Interact 2021; 351:109742. [PMID: 34774546 DOI: 10.1016/j.cbi.2021.109742] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 11/04/2021] [Accepted: 11/08/2021] [Indexed: 01/03/2023]
Abstract
In this work, new thiosemicarbazides (ECA-1, ECA-2) and their Cu (II) complexes (ECA-1-Cu, ECA-2-Cu) were synthesized and their structures were characterized by 1H NMR, 13C NMR, FT-IR, LC-MS, UV-Vis, and thermogravimetric analysis methods. Also, the surface morphology of the all compounds were examined by SEM (Scanning Electron Microscope). In the second stage, in vitro antioxidant capacity of the obtained compounds was investigated. The evaluation of the antioxidant properties of both synthesized ligands and complexes in this study was carried out by DPPH and FRAP methods. According to the results, both complexes exhibited more antioxidant capacity than the corresponding ligands. When antioxidant effects are compared for DPPH (SC50 = 5.27 ± 0.05 μM) and for FRAP (7845.69 ± 16.75 mmolTE/g), compound ECA-2-Cu appears to have the best inhibition effect. The complexes were found non-electrolytic in nature with melting point of above 250 °C, and electronic spectra and magnetic behavior demonstrated that the complexes were found to be tetrahedral geometry. Further, in silico the ADMET properties which studies are a significant role in improving and predicting drug compounds were calculated using web-based platforms. The theoretical calculations were made using the method of Density Functional Theory (Frontier molecular orbital analyze and Nonlinear optical properties). Also, molecular docking studies were performed to evaluate the binding interactions between the ligand and complex compounds and Human Peroxiredoxin 2. Both in vitro and in silico results indicated that synthesized compounds could act as potent antioxidant agents.
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Affiliation(s)
- Arif Mermer
- University of Health Sciences Turkey, Experimental Medicine Research and Application Center, Uskudar, 34662, Istanbul, Turkey.
| | - Saliha Alyar
- Department of Chemistry, Faculty of Science, Karatekin University, Çankırı, 18100, Turkey
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6
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Elsayed SA, Elnabky IM, di Biase A, El‐Hendawy AM. New mixed ligand copper(II) hydrazone‐based complexes: Synthesis, characterization, crystal structure, DNA/RNA/BSA binding, in vitro anticancer, apoptotic activity, and cell cycle analysis. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6481] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Shadia A. Elsayed
- Chemistry Department, Faculty of Science Damietta University New Damietta 34517 Egypt
| | - Islam M. Elnabky
- Chemistry Department, Faculty of Science Damietta University New Damietta 34517 Egypt
| | - Armando di Biase
- Department of Chemistry University of Milan C. Golgi 19 Milan 20133 Italy
| | - Ahmed M. El‐Hendawy
- Chemistry Department, Faculty of Science Damietta University New Damietta 34517 Egypt
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Maji A, Rathi S, Singh A, Singh UP, Ghosh K. Mononuclear iron(III) complexes derived from tridentate ligands containing non‐innocent phenolato donors: Self‐activated nuclease, protease, and phenoxazinone synthase activity studies. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6185] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Ankur Maji
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee India
| | - Sweety Rathi
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee India
| | - Anshu Singh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee India
| | - Udai P. Singh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee India
| | - Kaushik Ghosh
- Department of Chemistry Indian Institute of Technology Roorkee Roorkee India
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8
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Patel R, Patel S, Kumhar D, Patel N, Patel A, Jadeja R, Patel N, Butcher R, Cortijo M, Herrero S. Two new copper(II) binuclear complexes with 2-[(E)-(pyridine-2yl-hydrazono)methyl]phenol: Molecular structures, quantum chemical calculations, cryomagnetic properties and catalytic activity. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114687] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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9
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John L, Joseyphus RS, Joe IH. Molecular docking, photocatalytic activity and biomedical investigations of some metal complexes. J Biomol Struct Dyn 2020; 39:5600-5612. [PMID: 32687439 DOI: 10.1080/07391102.2020.1794964] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Metal(II)-(furfural-L-his) complexes with a potentially bidentate furfural-L-his have been synthesized. Furfural-L-his and its Co/Ni/Cu/Zn(II)-(furfural-L-his) complexes have been optimized by DFT. The structural features were determined from their elemental analyses, molar conductance, magnetic, UV-Vis, IR, mass, 1H NMR and EPR spectral studies. On the basis of electronic spectral data and magnetic measurements, suitable geometry has been proposed for each complex. The redox behaviour of Cu(II)-(furfural-L-his) complex has been studied by cyclic voltammetry. Thermal decomposition profiles are consistent with the proposed formulation of Co/Ni/Cu/Zn(II)-(furfural-L-his) complexes. PXRD studies reveal that furfural-L-his and Zn(II)-(furfural-L-his) complex are of nanomeric structure. SEM images of furfural-L-his exhibit flake-like morphology. Photodegradation of methylene blue dye indicates that they are photocatalyticaly efficient. NBO and NPA shown considerable reduction in the formal charge on metal ions. Docking analysis with EGFR and cyclooxygenase-2 receptor has been performed to find the best binding energy. Antimicrobial, antioxidant and anti-inflammatory activity against standard at variable concentrations revealed that the Co/Ni/Cu/Zn(II)-(furfural-L-his) complexes show enhanced antimicrobial, free radical scavenging and anti-inflammatory activities as compared to furfural-L-his. Furfural-L-his and Cu(II)-(furfural-L-his) complex have been tested against human ovarian cancer cells, which showed that Cu(II)-(furfural-L-his) complex exhibited promising anticancer activity.Communicated by Ramaswamy H. Sarma.
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Affiliation(s)
- Liji John
- PG & Research Department of Chemistry, Mar Ivanios College (Autonomous) (Research Centre: University of Kerala), Thiruvananthapuram, India
| | - R Selwin Joseyphus
- PG & Research Department of Chemistry, Mar Ivanios College (Autonomous) (Research Centre: University of Kerala), Thiruvananthapuram, India
| | - I Hubert Joe
- Department of Physics, University of Kerala, Thiruvananthapuram, India
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Chowdhury T, Dasgupta S, Khatua S, Acharya K, Das D. Executing a Series of Zinc(II) Complexes of Homologous Schiff Base Ligands for a Comparative Analysis on Hydrolytic, Antioxidant, and Antibacterial Activities. ACS APPLIED BIO MATERIALS 2020; 3:4348-4357. [PMID: 35025433 DOI: 10.1021/acsabm.0c00372] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Six zinc(II) complexes, namely, [Zn(HL1H)Cl2] (1), [Zn(HL1H)Br2] (2), [Zn2(HL1H)2(OH)I2]·I (3), [Zn(HL2)Cl] (4), [Zn2(HL2)Br3] (5), and [Zn(HL2)I] (6) have been manufactured by using two homologous Schiff base ligands H2L1 and H2L2 for the purpose of perlustrating their phosphatase-like activity, antioxidant activity, and antibacterial activity. Complexes 1, 2, 4, and 5 have been reported earlier by us, whereas complexes 3 and 6 have been synthesized and structurally characterized by regular physicochemical methods The hydrolytic property of the six complexes has been evaluated by checking the hydrolysis of the P-O bond of a widely used substrate, namely, disodium salt of (para-nitrophenyl)phosphate (PNPP) in 97.5% (v/v) mixture of N,N-dimethylformamide and water (DMF-water). Complexes 2-5 have profound efficiency toward hydrolysis of phosphate ester bonds, and complexes 1 and 6 were noted to be inactive toward hydrolysis. Complex 3 displayed the highest efficacy among the six complexes. Additionally, antioxidant and antibacterial activities of the complexes were studied thoroughly. A detailed study of their antioxidant property revealed that complex 3 manifested superior radical scavenging activity, thus exhibiting the highest antioxidant property. The antibacterial activity was tested using four investigating bacteria, specifically Listeria monocytogenes ATCC19111, Staphylococcus aureus ATCC 700699, Salmonella typhimurium ATCC 23564, and Escherichia coli ATCC 25922 by determining minimum inhibitory concentration (MIC) values using the microdilution method. Here as well, complex 3 exhibited the highest activity to both Gram positive and Gram negative bacteria. The chemistry behind these experimental findings has been manifested by shedding light upon the structural features of the complexes. The suitable choice of ligand H2L1 where one methylene group is less than its homologous ligand and metal precursor (ZnI2) imparts a unique hydroxo-bridged molecular geometry and 2D hydrogen bonding network which in turn probably enhances the hydrolytic and biological activities of complex 3.
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Affiliation(s)
- Tania Chowdhury
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Sanchari Dasgupta
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
| | - Somanjana Khatua
- Molecular and Applied Mycology and Plant Pathology Laboratory, Centre of Advanced Study, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019 West Bengal, India
| | - Krishnendu Acharya
- Molecular and Applied Mycology and Plant Pathology Laboratory, Centre of Advanced Study, Department of Botany, University of Calcutta, 35, Ballygunge Circular Road, Kolkata 700019 West Bengal, India
| | - Debasis Das
- Department of Chemistry, University of Calcutta, 92, A. P. C. Road, Kolkata 700009, India
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11
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Dinda R, Panda A, Banerjee A, Mohanty M, Pasayat S, Tiekink ER. Investigation of DNA interaction and antiproliferative activity of mixed ligand dioxidomolybdenum(VI) complexes incorporating ONO donor aroylhydrazone ligands. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114533] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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12
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Synthesis, DFT calculations, biological investigation, molecular docking studies of β-lactam derivatives. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127891] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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13
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Synthesis of novel Azol-β-lactam derivatives starting from phenyl piperazine and investigation of their antiurease activity and antioxidant capacity comparing with their molecular docking studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.04.039] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Liu E, Li L, Davis K, Zhang G. Synthesis and structural characterization of dinuclear Zinc(II) and Europium(III) complexes based on a bis-hydrazone ligand. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.02.044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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15
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Mermer A, Demirbas N, Uslu H, Demirbas A, Ceylan S, Sirin Y. Synthesis of novel Schiff bases using green chemistry techniques; antimicrobial, antioxidant, antiurease activity screening and molecular docking studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.12.114] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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16
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Ghosh S, Kurapati SK, Ghosh A, Srivastava AK, Pal S. Di-μ-acetato Diuranyl(VI) Complexes withN-(2-pyridyl)-N′-(5-R-salicylidene)hydrazines: Syntheses, Structures, Properties and Extraction Studies. ChemistrySelect 2018. [DOI: 10.1002/slct.201800940] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sabari Ghosh
- School of Chemistry; University of Hyderabad; Hyderabad 500 046 India
| | | | - Arpita Ghosh
- School of Chemistry; University of Hyderabad; Hyderabad 500 046 India
| | | | - Samudranil Pal
- School of Chemistry; University of Hyderabad; Hyderabad 500 046 India
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17
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Khan SZ, Zia-ur-Rehman, Amir MK, Ullah I, Akhter M, Bélanger-Gariepy F. Heteroleptic Palladium(II) dithiocarbamates: Synthesis, characterization and in vitro biological screening. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.11.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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18
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El-Saied FA, Shakdofa MM, Tabl ASE, Abd-Elzaher MM, Morsy N. Coordination versatility of N 2 O 4 polydentate hydrazonic ligand in Zn(II), Cu(II), Ni(II), Co(II), Mn(II) and Pd(II) complexes and antimicrobial evaluation. BENI-SUEF UNIVERSITY JOURNAL OF BASIC AND APPLIED SCIENCES 2017. [DOI: 10.1016/j.bjbas.2017.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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19
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Halogen Substituent Effect on the Spin-Transition Temperature in Spin-Crossover Fe(III) Compounds Bearing Salicylaldehyde 2-Pyridyl Hydrazone-Type Ligands and Dicarboxylic Acids. INORGANICS 2017. [DOI: 10.3390/inorganics5030053] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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20
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Antimicrobial Activities, Characterization and Synthesis of Organotin(IV) Complexes with Benzohydrazide Derivative. JOURNAL OF PURE AND APPLIED MICROBIOLOGY 2017. [DOI: 10.22207/jpam.11.1.19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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21
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Chavan SS, Pawal SB, More MS, Willis AC. Copper(I) Complexes of N-(2-{[(2E)-2-(4-Nitrobenzylidenyl)Hydrazinyl]Carbonyl}Phenyl)Benzamide and Triphenylphosphine: Synthesis, Characterization and Luminescence Properties. J Fluoresc 2016; 26:2033-2040. [PMID: 27524379 DOI: 10.1007/s10895-016-1897-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 07/26/2016] [Indexed: 11/28/2022]
Abstract
Copper(I) complexes of the formula [Cu(L)(PPh3)2]X (1-4) (X = Cl(1), ClO4(2), BF4(3) and PF6(4)) [where L = N-(2-{[(2E)-2-(4-nitrobenzylidenyl)hydrazinyl]carbonyl}phenyl)benzamide; PPh3 = triphenylphosphine] have been prepared by the condensation of N-[2-(hydrazinocarbonyl)phenyl]benzamide with 4-nitrobenzaldehyde followed by the reaction with CuCl, [Cu(MeCN)4]ClO4, [Cu(MeCN)4]BF4 and [Cu(MeCN)4]PF6 in presence of triphenylphosphine as a coligand. Complexes 1-4 were then characterized by elemental analyses, FTIR, UV-visible and 1H NMR spectroscopy. Mononuclear copper(I) complexes 1-4 were formed with L in its keto form by involvement of azomethine nitrogen and the carbonyl oxygen along with two PPh3 groups. A single crystal X-ray diffraction study of the representative complex [(Cu(L)(PPh3)2]CIO4 (2) reveals a distorted tetrahedral geometry around Cu(I). Crystal data of (2): space group = C2/c, a = 42.8596 (9) Å, b = 14.6207 (3) Å, c = 36.4643 (7) Å, V = 20,653.7 (7) Å3, Z = 16. Complexes 1-4 exhibit quasireversible redox behaviour corresponding to a Cu(I)/Cu(II) couple. All complexes show blue-green emission as a result of fluorescence from an intra-ligand charge transition (ILCT), ligand to ligand charge transfer transition (LLCT) or mixture of both. Significant increase in size of the counter anion shows marked effect on quantum efficiency and lifetime of the complexes in solution.
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Affiliation(s)
- S S Chavan
- Department of Chemistry, Shivaji University, Kolhapur, (MS), 416004, India.
| | - S B Pawal
- Department of Chemistry, Shivaji University, Kolhapur, (MS), 416004, India
| | - M S More
- Department of Chemistry, Shivaji University, Kolhapur, (MS), 416004, India
| | - A C Willis
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
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22
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Onwudiwe DC, Ekennia AC. Synthesis, characterization, thermal, antimicrobial and antioxidant studies of some transition metal dithiocarbamates. RESEARCH ON CHEMICAL INTERMEDIATES 2016. [DOI: 10.1007/s11164-016-2709-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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23
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Synthesis, characterization and luminescence properties of azobenzene based heterobimetallic Ru(II)/M(II) (M = Ni and Zn) hybrid complexes composed of organometallic and coordination sites. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.04.030] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Vogler A. Phosphorescent iron complexes? Intraligand luminescence of solid Fe(II)(binap)Cl2 at room temperature. INORG CHEM COMMUN 2016. [DOI: 10.1016/j.inoche.2016.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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25
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Three ion–pair complexes containing bis(maleonitriledithiolate)copper(II) anion and substituted 2-aminopyridinium cations: Syntheses, crystal structures, and magnetic properties. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.12.065] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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Li L, Zhang YZ, Liu E, Yang C, Golen JA, Rheingold AL, Zhang G. Synthesis and structural characterization of zinc(II) and cobalt(II) complexes based on multidentate hydrazone ligands. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2016.01.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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27
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Vrdoljak V, Pavlović G, Maltar-Strmečki N, Cindrić M. Copper(ii) hydrazone complexes with different nuclearities and geometries: synthetic methods and ligand substituent effects. NEW J CHEM 2016. [DOI: 10.1039/c6nj01036a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
The effect of synthetic methods on the nuclearity and geometry of copper(ii) complexes with aroylhydrazones was investigated. Thermally induced structural transformations of dinuclear complexes under solvent-free conditions are also described.
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Affiliation(s)
- Višnja Vrdoljak
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
| | - Gordana Pavlović
- University of Zagreb
- Faculty of Textile Technology
- Division of Applied Chemistry
- 10000 Zagreb
- Croatia
| | | | - Marina Cindrić
- University of Zagreb
- Faculty of Science
- Department of Chemistry
- 10000 Zagreb
- Croatia
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28
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Synthesis, characterization and antimicrobial activity of copper(II) complexes with hydrazone derived from 3-hydroxy-5-(hydroxymethyl)-2-methylpyridine-4-carbaldehyde. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.10.035] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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29
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Bartkowiak G, Gawron K, Jurga S, Schroeder G. Mass spectrometry of lanthanide(III) complexes with 2,6-diformylpyridine bis(4-pyridylcarbohydrazone) and its unusual methylation observed in matrix-assisted laser desorption/ionization mass spectra. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2015; 29:1696-1702. [PMID: 26467121 DOI: 10.1002/rcm.7260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2015] [Revised: 06/12/2015] [Accepted: 06/21/2015] [Indexed: 06/05/2023]
Affiliation(s)
- Grażyna Bartkowiak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89B, 61-614, Poznań, Poland
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, 61-614, Poznań, Poland
| | - Katarzyna Gawron
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89B, 61-614, Poznań, Poland
| | - Stefan Jurga
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, 61-614, Poznań, Poland
- Faculty of Physics, Adam Mickiewicz University in Poznań, Umultowska 85, 61-614, Poznań, Poland
| | - Grzegorz Schroeder
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Umultowska 89B, 61-614, Poznań, Poland
- NanoBioMedical Centre, Adam Mickiewicz University in Poznań, Umultowska 85, 61-614, Poznań, Poland
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30
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El-Gammal OA, Abu El-Reash GM, Yousef TA, Mefreh M. Synthesis, spectral characterization, computational calculations and biological activity of complexes designed from NNO donor Schiff-base ligand. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 146:163-176. [PMID: 25813173 DOI: 10.1016/j.saa.2015.01.043] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 12/11/2014] [Accepted: 01/14/2015] [Indexed: 06/04/2023]
Abstract
A new series of Co(II), Ni(II) and Cu(II) complexes of (Z)-2-oxo-2-(phenylamino)-N'-(1-(pyridin-2-yl)ethylidene)acetohydrazide (H2OPPAH) have been prepared and characterized by conventional techniques. The spectral data indicated that the ligand acts as neutral or mononegative NNO tridentate. On the basis of magnetic and electronic spectral data an octahedral geometry for Ni(II) and Cu(II) complexes and a tetrahedral geometry for Co(II) complex have been proposed. The molecular modeling using DFT method are drawn showing the bond length, bond angle, chemical reactivity, energy components (kcal/mol) and binding energy (kcal/mol) for all title compounds. The Kinetic parameters were determined for each thermal degradation stages of the ligand and its complexes using Coats-Redfern and Horowitz-Metzger methods. Also, the compounds were screened for antioxidant activity using ABTS free radical, anti-hemolytic, and in vitro cytotoxic assay. H2OPPAH showed the potent antioxidant activity followed by Co(II) and Cu(II) complexes. On the other hand Ni(II) complex exhibited weak antioxidant activity using ABTS free radical and Erlich and strong erythrocyte hemolysis activity.
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Affiliation(s)
- Ola A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt.
| | - G M Abu El-Reash
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
| | - T A Yousef
- Department of Toxic and Narcotic Drug, Forensic Medicine, Mansoura Laboratory, Medicolegal organization, Egypt
| | - M Mefreh
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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Zaltariov MF, Vlad A, Cazacu M, Avadanei M, Vornicu N, Balan M, Shova S. Silicon-containing bis-azomethines: synthesis, structural characterization, evaluation of the photophysical properties and biological activity. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 138:38-48. [PMID: 25437843 DOI: 10.1016/j.saa.2014.11.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2014] [Revised: 10/23/2014] [Accepted: 11/05/2014] [Indexed: 06/04/2023]
Abstract
A new diamine, (dimethylsilanediyl)bis(methylene)bis(4-aminobenzoate) (1), containing dimethylsilane spacer, was prepared by the condensation of p-aminobenzoic acid with bis(chloromethyl)dimethylsilane. This was subsequently reacted with salicylaldehyde, 3-hydroxy-salicylaldehyde, and 3-methoxy-salicyladehyde, when corresponding Schiff bases (E)-(dimethylsilanediyl)bis(methylene)bis(4-((E)-(2-hydroxybenzilidene)amino)benzoate (2), (E)-(dimethylsilanediyl)bis(methylene)bis(4-((E)-(2-hydroxybenzilidene)amino)benzoate (3), and (E)-(dimethylsilanediyl)bis(methylene) bis(4-((E)-(2-hydroxy-3-methoxybenzilidene)amino)benzoate (4), respectively were formed. All the obtained compounds were structurally characterized by spectral (FT-IR, (1)HNMR, (13)CNMR) analyses and single crystal X-ray diffraction. Photophysical studies revealed that the new prepared Schiff bases are good UV light absorbing and fluorescent materials. Thus, they exhibit strong UV/Vis-absorption at 250-400nm and violet or orange emission, in sensitive dependence on the polarity of the solvents and the nature of the substituent (H, OH and OCH3) at the aromatic ring. The antimicrobial activity of these compounds was first studied in vitro by the disk diffusion assay against two species of bacteria and three fungi. The minimum inhibitory concentration was then determined with the reference of standard compounds. The results displayed that Schiff bases 3 and 4 having hydroxy- and methoxy-substituents on the aromatic ring were better inhibitors of both types of species (bacteria and fungi) than standard compounds, Caspofungin and Kanamycin.
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Affiliation(s)
| | - Angelica Vlad
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iaşi, Romania
| | - Maria Cazacu
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iaşi, Romania.
| | - Mihaela Avadanei
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iaşi, Romania
| | - Nicoleta Vornicu
- Metropolitan Center of Research TABOR, The Metropolitanate of Moldavia and Bukovina, Closca 9, 700066 Iaşi, Romania
| | - Mihaela Balan
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iaşi, Romania
| | - Sergiu Shova
- "Petru Poni" Institute of Macromolecular Chemistry, Aleea Gr. Ghica Voda 41A, 700487 Iaşi, Romania
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El-Gammal OA, Bekheit MM, Tahoon M. Synthesis, characterization and biological activity of 2-acetylpyridine-α naphthoxyacetylhydrazone and its metal complexes [corrected]. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 135:597-607. [PMID: 25124845 DOI: 10.1016/j.saa.2014.05.071] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/16/2014] [Accepted: 05/28/2014] [Indexed: 06/03/2023]
Abstract
A new series of complexes of Ni(II), Co(II), Cu(II), Cd(II), Mn(II), Hg(II) and UO2(2+) derived from 2-acetylpyridine-α-naphthoxyacetylhydrazone (HA2PNA) have been prepared and characterized by elemental analyses, spectral (IR, UV-visible, ESR and (1)H NMR) as well as magnetic and thermal measurements. The data revealed that the ligand acts as neutral NO, NN and NNO or mono-negative NNO chelate. On the basis of electronic spectral and magnetic moment data, an octahedral geometry is suggested for Mn(II), Co(II), Ni(II) and UO2(2+) complexes and a square planar arrangement for Cu(II) complex. The bond length, bond angle, HOMO, LUMO, dipole moment and charges on the atoms have been calculated to confirm the geometry of the ligand and the investigated complexes. The kinetic parameters were determined for thermal degradation stages of some complexes using Coats-Redfern and Horowitz-Metzger methods. Also, the ligand and its complexes were screened against antibacterial, antioxidant using DPPH radical and antitumor activities using in vitro Ehrlich ascites assay.
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Affiliation(s)
- O A El-Gammal
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, P.O. Box 70, Mansoura, Egypt.
| | - M M Bekheit
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, P.O. Box 70, Mansoura, Egypt
| | - Mai Tahoon
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, P.O. Box 70, Mansoura, Egypt
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Kamal R, Kumar V, Bhardwaj V, Kumar V, Aneja KR. Synthesis, characterization and in vitro antimicrobial evaluation of some novel hydrazone derivatives bearing pyrimidinyl and pyrazolyl moieties as a promising heterocycles. Med Chem Res 2015. [DOI: 10.1007/s00044-014-1313-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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La Porta FA, Ramos PH, de Resende EC, Guerreiro MC, Giacoppo JO, Ramalho TC, Sambrano JR, Andrés J, Longo E. Structural, electronic and optical properties of Fe(III) complex with pyridine-2,6-dicarboxylic acid: A combined experimental and theoretical study. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.03.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Analgesic, Anti-Inflammatory, and Antiplatelet Profile of Hydrazones Containing Synthetic Molecules. ACTA ACUST UNITED AC 2013. [DOI: 10.1155/2013/247203] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Hydrazones are present in many of the bioactive compounds with wide interest because of their diverse pharmacological applications. Hydrazones possess wide variety of biological activities such as anticonvulsant, antidepressant, analgesic, anti-inflammatory, antiplatelet, antimicrobial, anticancer, antihypertensive, anthelmintic, antidiabetic, antiparasitic, and other anticipated activities. This created an interest for researchers towards synthesized variety of hydrazone derivatives for different biological activities. Therefore many researchers have synthesized hydrazone derivatives as target structures for their biological activities. This is paper focuses on the analgesic, anti-inflammatory, and antiplatelet activities of hydrazones.
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Synthesis, structure, interaction with DNA and cytotoxicity of a luminescent copper(II) complex with a hydrazone ligand. Polyhedron 2013. [DOI: 10.1016/j.poly.2013.01.002] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mukherjee S, Mal P, Stoeckli-Evans H. A new chromogenic and ratiometric agent for copper(II): Synthesis, structure and spectroscopy. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.12.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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38
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Harinath Y, Kumar Reddy DH, Kumar BN, Apparao C, Seshaiah K. Synthesis, spectral characterization and antioxidant activity studies of a bidentate Schiff base, 5-methyl thiophene-2-carboxaldehyde-carbohydrazone and its Cd(II), Cu(II), Ni(II) and Zn(II) complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2013; 101:264-272. [PMID: 23103468 DOI: 10.1016/j.saa.2012.09.085] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 09/23/2012] [Accepted: 09/26/2012] [Indexed: 06/01/2023]
Abstract
A new Schiff base bidentate ligand (L), 5-methyl thiophene-2-carboxaldehyde-carbohydrazone and its metal (Cu(II), Cd(II), Ni(II) and Zn(II)) complexes with general stoichiometry [M(L)2X2] (where X=Cl) were synthesized. The ligand and its metal complexes were characterized by elemental analyses, IR, 1H NMR, ESR spectral analyses, and molar conductance studies. The molar conductance data revealed that all the metal chelates are non-electrolytes. IR spectra showed that ligand (L) is coordinated to the metal ions in a bidentate manner with N and O donor sites of the azomethine-N, and carbonyl-O. ESR and UV-Vis spectral data showed that the geometrical structure of the complexes are Orthorhombic. Furthermore, the antioxidant activity of the ligand and its complexes was determined by hydroxyl radical scavenging, DPPH, NO, reducing power methods in vitro. The obtained IC50 value of the DPPH activity for the copper complex (IC50=66.4 μm) was higher than other compounds. Microbial assay of the above complexes against Staphylococcus aureus, Escherichia coli, Rhizocotonia bataticola and Alternaria alternata showed that copper complex exhibited higher activity than the other complexes.
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Affiliation(s)
- Y Harinath
- Inorganic and Analytical Chemistry Division, Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, India
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Suzuki–Miyaura cross-coupling reaction of aryl bromides catalyzed by palladium(II) pyridoxal hydrazone complexes. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.02.010] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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40
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Synthesis, crystal structures and fluorescence studies of three new Zn(II) complexes with multidentate Schiff base ligands. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2011.11.027] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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41
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El-Gammal OA, El-Reash GA, Ahmed SF. Structural, spectral, thermal and biological studies on 2-oxo-N′-((4-oxo-4H-chromen-3-yl)methylene)-2-(phenylamino)acetohydrazide (H2L) and its metal complexes. J Mol Struct 2012. [DOI: 10.1016/j.molstruc.2011.03.043] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Ahmed SF, El-Gammal OA, Abu El-Reash G. Synthesis, spectroscopic characterization and thermal behavior of metal complexes formed with N'-(1-(4-hydroxyphenyl) ethylidene)-2-oxo-2-(phenylamino) acetohydrazide (H3OPAH). SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2011; 83:17-27. [PMID: 21920806 DOI: 10.1016/j.saa.2011.04.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/16/2011] [Revised: 03/08/2011] [Accepted: 04/26/2011] [Indexed: 05/31/2023]
Abstract
Complexes of Co(II), Ni(II), Cu(II), Mn(II), Cd(II), Zn(II), Hg(II) and U(IV)O(2)(2+) with N'-(1-(4-hydroxyphenyl) ethylidene)-2-oxo-2-(phenylamino) acetohydrazide (H(3)OPAH) are reported and have been characterized by various spectroscopic techniques like IR, UV-visible, (1)H NMR and ESR as well as magnetic and thermal (TG and DTA) measurements. It is found that the ligand behaves as a neutral bidentate, monoanionic tridentate or tetradentate and dianionic tetradentate. An octahedral geometry for [Mn(H(3)OPAH)(2)Cl(2)], [Co(2)(H(2)OPAH)(2)Cl(2)(H(2)O)(4)] and [(UO(2))(2)(HOPAH)(OAc)(2)(H(2)O)(2)] complexes, a square planar geometry for [Cu(2)(H(2)OPAH)Cl(3)(H(2)O)]H(2)O complex, a tetrahedral structure for [Cd(H(3)OPAH)Cl(2)], [Zn(H(3)OPAH)(OAc)(2)] and [Hg(H(3)OPAH)Cl(2)]H(2)O complexes. The binuclear [Ni(2)(HOPAH)Cl(2)(H(2)O)(2)]H(2)O complex contains a mixed geometry of both tetrahedral and square planar structures. The protonation constants of ligand and stepwise stability constants of its complexes at 298, 308 and 318 K as well as the thermodynamic parameters are being calculated. The bond lengths, bond angles, HOMO, LUMO and dipole moments have been calculated to confirm the geometry of the ligand and the investigated complexes. Also, thermal properties and decomposition kinetics of all compounds are investigated. The interpretation, mathematical analysis and evaluation of kinetic parameters (E(a), A, ΔH, ΔS and ΔG) of all thermal decomposition stages have been evaluated using Coats-Redfern and Horowitz-Metzger methods.
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Affiliation(s)
- Sara F Ahmed
- Department of Chemistry, Faculty of Science, Mansoura University, Mansoura, Egypt
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Singh VP, Singh S. Synthesis, physico-chemical, and spectral studies of dimeric cobalt(II), nickel(II), copper(II), zinc(II), and cadmium(II) complexes with dibutanone acyldihydrazones. J COORD CHEM 2011. [DOI: 10.1080/00958972.2011.613461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Vinod P. Singh
- a Department of Chemistry , Banaras Hindu University , Varanasi-221005 , India
| | - Shweta Singh
- a Department of Chemistry , Banaras Hindu University , Varanasi-221005 , India
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Chang M, Kobayashi A, Nakajima K, Chang HC, Kato M. Dimensionality Control of Vapochromic Hydrogen-Bonded Proton-Transfer Assemblies Composed of a Bis(hydrazone)iron(II) Complex. Inorg Chem 2011; 50:8308-17. [PMID: 21800867 DOI: 10.1021/ic2008396] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mee Chang
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Kiyohiko Nakajima
- Department of Chemistry, Aichi University of Education, Igaya, Kariya, Aichi 448-8542, Japan
| | - Ho-Chol Chang
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masako Kato
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
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Mukherjee S, Chowdhury S, Chattapadhyay AP, Bhattacharya A. Spectroscopic, cytotoxic and DFT studies of a luminescent palladium(II) complex of a hydrazone ligand that induces apoptosis in human prostate cancer cells. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.03.048] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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Parrilha GL, Vieira RP, Rebolledo AP, Mendes IC, Lima LM, Barreiro EJ, Piro OE, Castellano EE, Beraldo H. Binuclear zinc(II) complexes with the anti-inflammatory compounds salicylaldehyde semicarbazone and salicylaldehyde-4-chlorobenzoyl hydrazone (H2LASSBio-1064). Polyhedron 2011. [DOI: 10.1016/j.poly.2011.04.024] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Seleem HS, El-Inany GA, El-Shetary BA, Mousa MA, Hanafy FI. The ligational behavior of an isatinic quinolyl hydrazone towards copper(II)- ions. Chem Cent J 2011; 5:20. [PMID: 21504614 PMCID: PMC3113336 DOI: 10.1186/1752-153x-5-20] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2011] [Accepted: 04/19/2011] [Indexed: 11/10/2022] Open
Abstract
Background The importance of the isatinic quinolyl hydrazones arises from incorporating the quinoline ring with the indole ring. Quinoline ring has therapeutic and biological activities whereas, the indole ring occurs in Jasmine flowers and Orange blossoms. As a ligand, the isatin moiety is potentially ambidentate and can coordinate the metal ions either through its lactam or lactim forms. In a previous study, the ligational behavior of a phenolic quinolyl hydrazone towards copper(II)- ions has been studied. As continuation of our interest, the present study is planned to check the ligational behavior of an isatinic quinolyl hydrazone. Results New homo- and heteroleptic copper(II)- complexes were obtained from the reaction of an isatinic quinolyl hydrazone (HL) with several copper(II)- salts viz. Clˉ, Brˉ, NO3ˉ, ClO4-, SO42- and AcO-. The obtained complexes have Oh, Td and D4h- symmetry and fulfill the strong coordinating ability of Clˉ, Brˉ, NO3ˉ and SO42- anions. Depending on the type of the anion, the ligand coordinates the copper(II)- ions either through its lactam (NO3ˉ and ClO4-) or lactim (the others) forms. Conclusion The effect of anion for the same metal ion is obvious from either the geometry of the isolated complexes (Oh, Td and D4h) or the various modes of bonding. Also, the obtained complexes fulfill the strong coordinating ability of Clˉ, Brˉ, NO3ˉ and SO42- anions in consistency with the donor ability of the anions. In case of copper(II)- acetate, a unique homoleptic complex (5) was obtained in which the AcO- anion acts as a base enough to quantitatively deprotonate the hydrazone. The isatinic hydrazone uses its lactim form in most complexes.
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Affiliation(s)
- Hussein S Seleem
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt.
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Seleem HS, El-Inany GA, El-Shetary BA, Mousa MA. The ligational behavior of a phenolic quinolyl hydrazone towards copper(II)- ions. Chem Cent J 2011; 5:2. [PMID: 21223587 PMCID: PMC3033234 DOI: 10.1186/1752-153x-5-2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2010] [Accepted: 01/11/2011] [Indexed: 11/25/2022] Open
Abstract
Background The heterocyclic hydrazones constitute an important class of biologically active drug molecules. The hydrazones have also been used as herbicides, insecticides, nematocides, redenticides, and plant growth regulators as well as plasticizers and stabilizers for polymers. The importance of the phenolic quinolyl hydrazones arises from incorporating the quinoline ring with the phenolic compound; 2,4-dihydroxy benzaldehyde. Quinoline ring has therapeutic and biological activities whereas, phenols have antiseptic and disinfectants activities and are used in the preparation of dyes, bakelite and drugs. The present study is planned to check the effect of the counter anions on the type and geometry of the isolated copper(II)- complexes as well as the ligational behavior of the phenolic hydrazone; 4-[(2-(4,8-dimethylquinolin-2-yl)hydrazono)methyl] benzene-1,3-diol; (H2L). Results A phenolic quinolyl hydrazone (H2L) was allowed to react with various copper(II)- salts (Cl‾, Br‾, NO3‾, ClO4‾, AcO‾, SO42-). The reactions afforded dimeric complexes (ClO4‾, AcO‾ ), a binuclear complex (NO3‾ ) and mononuclear complexes (the others; Cl‾, Br‾, SO42-). The isolated copper(II)- complexes have octahedral, square pyramid and square planar geometries. Also, they reflect the strong coordinating ability of NO3‾, Cl‾, Br‾, AcO‾ and SO42- anions. Depending on the type of the anion, the ligand showed three different modes of bonding viz. (NN)0 for the mononuclear complexes (3, 4, 6), (NO)- with O- bridging for the dimeric complexes (1, 5) and a mixed mode [(NN)0 + (NO)- with O- bridging] for the binuclear nitrato- complex (2). Conclusion The ligational behavior of the phenolic hydrazone (H2L) is highly affected by the type of the anion. The isolated copper(II)- complexes reflect the strong coordinating power of the SO42-, AcO‾, Br‾, Cl‾ and NO3‾ anions. Also, they reflect the structural diversity (octahedral, square pyramid and square planar) depending on the type of the counter anion.
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Affiliation(s)
- Hussein S Seleem
- Department of Chemistry, Faculty of Education, Ain Shams University, Roxy, Cairo, Egypt.
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A new blue luminescent dichlorido-bridged dinuclear copper(II) complex with DNA binding and cytotoxic activities: Synthesis, structure and DFT studies. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.04.026] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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50
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Mukherjee S, Chowdhury S, Chattopadhyay AP, Stoeckli-Evans H. Spectroscopic, structure and DFT studies of copper(II) and palladium(II) complexes of pyridine-2-carboxaldehyde-2-pyridylhydrazone: A chromogenic agent for palladium(II). Polyhedron 2010. [DOI: 10.1016/j.poly.2009.12.008] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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